Underframe.



J. M. ROHLPING.Y

UND'ERFRAMB.

APPLICATION FILED AUG.14. 1912.

Patented Noll, 19131,

4 SHBBTr-SHEET 2.

- ATTORNEY INVENTOR wmwEssE J. M. ROHLFING.

UNDERFRAMB. lPPLIOMION FAILED 11116.14, 1912.

Patented 1101111913.

4 SHEETS-SHEET' 3.

' AT'roRNEv J. M. ROHLFING.

UNDERPRAMB.

y APPLICATION FILED AUG.14, 1912.

Patented 111011141913.

4 s'BBTs-smm 4.

INVENTOR WlTN ESSES ATTORNEY inrentiomthe compression member oll the lcasting may be rut away at intervals from Itrnssisvpreferably formed ofcimnnercial roller sections provided with a connecting cover plate andis supportedl upon thee-.ist

truss member by means ol' suitable chairs in such manner thatcompression exerted ngen the rolled section 1s absolutely resisted bythe cast truss member bearings or chairs and' compression membercomprising` a plurality ol' assembled commercial I rolled sectionswlnchwill be described more 1n detail here 'casting comprising in the .main aweb 1 extendingfrom one end to the othorof said castings vand providedwith a bottom flange 2 extending into the center plates 3 at each end ofthe castings, which are integral with in l the casting. The centerplates 3 carry the king pin socket, and also form a bolster filler andthe walls of said Center plates` are supported by an extension of theweb 1 of the casting extension beyond the hing.; pin

socket and by radially arranged webs el and by the wall of the lung pinsocket.

ter plate 3 is provided with Vertical dautres The een- 5 arranged to bellxed to the inside oi the draft sills 6 and so arranged as to providea. recess into which the bottom flange; ol the draft sill may fit. Ahorizontal side liar-.gre i is also provided which is adapted to Isnp`portthe bottoinof the boletf casting,`

At intervals along the casting` are. laterally extending vertical wingsl integral with the casting and provided at their outer end withvertical and horizbntal flanges 1()---'l', the Avertical llange begpg ina plane parallel with the web of the casting. rlrheir llanges takentogether form' an angle support or bracket and securing means lor theeross` bearers, it will4 be observed that the vertical and horizontalflanges lie inthe saine planes as the bolster securing and suimortiuglangge Y. The casting,` or tension member is designed vto be widest atits center and tapered toujardthe bolster as is usual with the aece'ptedtruss Shape. The upper portion o1 the casting is provided withahorizontal top flange forming 1a support for the onnipres- Sion member,the top of which ,flange er 'tends in the saine plane as the topv of theeenterplate 3, so that the superstructure or thescompression*member maybe supported throughout .its length. The web 1, of the the upper portiontbereoil' for lightness and reinlorred by (langes 111V, thereby lim-ming:troni the upper (lange ol lhe tension member, compre Aion member chairs13 which are supported on the iiortioas of the web which are notent:ir-:ay and which might be termed struts 1": l`ho eonnn'e. yion membercom prises a air ol conmmreial eham'ielr sections l5 spared apart andarranged back to back. 'lfhese eimnnereial channel seelions extendthrough the holsters abutting the ends of the dra liti sill G and withthe draft sills form a eontinuous double center sill lrom end to end ot'the ear. These rommerehil sei-tions arel atarhed by their bottom ll: lato the compression nsrmber chairs lil and are secured together at. theirtop by a eurer plate ie liXed 'to the top flanges l5, said rover platoextends beyond thc bolster toward the end sills and covers a part o'lEand is fixed to the upper llange oli'the dralft sill (l. The dra'l sillst3 entr-ud l'rom the center plate oil:I the r; ingr to the end sills andare adapted to'carry the dra lit gear of the rar. 'lhese sills are.attached to the tension member casting` and the eoinpression membersills by means of angle bars 17 within the said sills. the opstandingYlegs of the angle bars .1 ,ndingj yalong; the eimnn'rssion menibersills` and being 'fixed thereto and the horizonlal llangi'e is adaptedlo be liXcd to the tension nuniber casting: i. i, the top ol: the renterplate. llolster castings S are identiral. il taking` two to l'orm acomplete bolster and are arranged with a. vertical central web and upperand lower flanges 18 and 1S). lPhe upper side of the bolster dropslslightly l'ron'l the horilziinal plane at the outer end to proride abracloxt lor the. Zshaped Side sill E20,

plate 165 an upwardly extending' flange LL lmrinp: a bracing;` web isprovided as a side or inside support lor the 'r1-shaped side sill. lheupper llange 1S ol` .said bolster is provided with a seat Q3 lor thenailingr :drips shown in dotted liurs in Figs. S) and ll). 'lhe web andthe upper and lower flanges of .the bolster project beyond [he Z-shapedside sill and are cross braced by a wrlieal web 2l. The lower flange ofthe holster perforated at its outer lend to ''ariliiate ireting andprovided with an integral body side bearing' and with a recess intowhich the horizontal llange 7 oli the center plate tits." 'lfhe nner endof the rast1 bolster is recessed and the flange 'is arranged in twoplanes, the one to conform to thev contour of the east tension memberand to be aiixod thereto, and the other to contorni to the.eoinpressioumember and to be alliaed thereto. To more rigidly attach the of lan.angle bar 2'7`;`the,upstanding leg of` which `is secuned. tojbejmegsideof the side io/wallsof ther-compression/member and `-the horizontal legtothe top` of the tie plate.

The cross bearers consist of pressedmetal diaphragms 28,y provided withintegral surrounding edge Hangers on one side only, and said .crossheal-ersA are tapered 'from the cen- Ater sill -to thesid'e sills-thebroader side being adaptetltobe attached tothe-center sills. These crossbearers arevprovided with l a recess fonfthe inner.side,. and the'Aflange thereof is atrangedin two planes to iitthe contormationof thecenter sil-l. Two of these crossl' bearer .sections fonm` a .crossbearer and;Il are interchangeable. Each pair of' cross :bearers isattached toftheyiang'es 10--11 or gbraekets extending from Wings 9 onthe casting and also are attachedto the vertical webs 4of the 1channelsections of the compression member. The upper ilanges of. f the lcrossbearer .are connected through the .3p

channel'sectiions of the compression member by means of apenetratingtieplate 2.9 which is secured tothe angle bars y(5&0, showninig. 10, which angle bars are rivetedto the Webs of the channelsections-ot` the compression members.. Theouter ends of theterossbearers are connectedtolthe.Zshaped side sillsby means of taperedA,angle brackets 31, which are provided -Withinclined reinforcing web andwith an .upstanding-iange 32, to which 4latter the Z-shaped side sill=is attached.

vIt will be :observed that the cross .bearers next lthe holsters? y*have--.the anged side' -better resisted.'

l -Another'important fdetail relative to this construction is that theWeight of the car body, the bolster sections and the cross-member'sections Q8, owing to the promoting brackets?) and .the center castingflanges 7,are carried upon the cast tension `member I and exert only avery slight side compression force upon the compression member 'walls15, should .the car -be submitted to any torsional strains oneither-side of the center sill. This is mainly due to the elasticity ofthe metal of therollcd metal crc-Ss .members 28.

lt Willthenefore be seen that the Whole undert'name is supported by thecasttension member and that the relatively elastic compression member isdisposed in line to primarily `receive and absorb buiiing shocks.

The .end sills of the car are of usual con-.

struction withthe exception that the diagonal brace .extending from thecorner formed by the juncture of the Z-shaped side sills to the cornerformed by the juncture of the bol- Ister and center sills are omittedand angle corner plates' and 35 are provided. AThese corner plates haveupstanding Hanges for securing the same to theend and side plates andare only .used at thejuncture of the Z-'shaned side sills and the endsills, .and the juncture ofy the center draft sills and the end sills. v

Meanslare provided vfor securing brake Abeamlevers 1n position on thecast metal member,.said means comprising socket-s 3 and clips .3"..Through the clips B and projecting into the sockets .extend pins '36,'which are. adapted to be projected through the usual .pivot bearings inbrake levers; and thecotters v36 hold said pins .36 in position.

Byv this .construction the entire lower or tension part of theunderframeis rigid Aor as rigid as cast metal canmake it,.and the b,o1- sters arerigid and every `part is so shaped and arranged .that all compressionstrains shall be exerted vupon ,a relatively' elastic clementcompression -inember .which is rein- :forced and carried by the east`tension member, Yalso every part betvveen'the holsters transmits itsWeight tothe cast tension l,member so that the elasticity of thecompression member is limited in its vibration ,by the supporting ortension member.

A .point .to be'observed in this device is that .the draft sills and endconstruction -of the underframe are .composed of rolled sections andlight as compared with the main resisting and carryingA tension memberso that should any great buiing stress be'.`

brought to bear upon the end sills or end sections, as a collision, itcould only "buckle or collapse the end section until themain resistingcolumn or backfbone `was reached. This arrangement practicallyvproteoltsjhe body of the car by sacrificing the platf rm. Such acontingency, however, Would be *are as the end frame construction usedin this application is as strong, if lnot stronger, than those in.general use at present.

strains from whatsoever source, are transmitted to a rlgld'supportingtension member The mainlidca of this construction is that Iallv 'and.primarily transmi-tted'in `all directions ,of rolled et'rnr't'nrrial.seet. lln'ienfihe supported by saittsill.

may be substituted tl'zeretor and be eonneeted 1n various ways withinthe spirit of the present invention.

k2. lin an undertrame terrailroa'd ears,

` sill' eoiiip'i'i;siitg a rast tension member and aeonipression,membercomposed ot assem- :si-lll comprising a t t1- a eompression membereompowd ot a plu- :bled rolled yeemmereial seetions and transverse.members supported by said sill.

v 3, ln an mulerlfranie :for railroad ears, a

tensi-:in member and rality oli-rolled eonnnereial sections and'transverse projections extending .trom the bers carried by saidproliefttions. l, al. ln an undertrame :tor railway ears, a

, transverse members supi'ierted by said center l east tension memberand transverse meni- ,Compound Center sill comprising' a rast len sionmember and a compression member leon'iposed oi a plurality ol' rolledseetions,

said eon'lpression member beine' iixed to supported by said tensionmember and and sill.4

5. ln an umler't'rame tor rail'anyl ears, a eenter sill eomln'isingr atensifn member ot east metal and ,a hollow rolled metal oompressionmember and tr: isrerse members supported -by-said center sill.

6.111 an nnderraine, a truss ernter sill comprising,- a plurality oteommereial rolled sections forming;` the upper ehord of a truss and afrastingi` provided with struts adapted to support the upper chord oi"the truss, forming the lower ehord ot the truss and transverse memlwrssnpported by said renter sill.

7. ln an nmleriranie, a truss center sill comprising a plurality etrolled eommereial sections torniinje,T the. upper chord oi' a truss andaeastinir forming the lower ehord of a truss and transverse membersadapted to absorb the strainsI ot torsion and compression connecting;`tl".@members ot -said eenter sill.

8. ln an nmlertraiue, a. ltruss renter sill Comprising a pluralityotrolled (,'imimereial sections forming the nppeigehord et a truss and aCast-ing forming; the lower Chord oli a truss, and'transrerse memberseonneetingr the members ot' the central sill, and oonneoted togetherthrough the center sill and adapted to absorb thestrains oit the torsionand compression oit' the load above the nnderfral'nen bln anluider-frame, a center sill Comprisme` an integrally east tension memberextending beyond the holsters and assent bled rolled,commercial sectionsforming a end to end of the ear and transverse members ixed to`saidCenter sill.

lo. ln an underframe, a center sill comprisingan integrally east tensionmember extending beyond the holsters `and assembled rolled mnnmereialseetionsforming a com- ',pression member andV extending from end to endof the ear, holsters, bolster hearings east integrally with the tensionmember and projecting from the sides thereof, transverse membersintermediate of the holsters and fixed to the said oenter sill.

lll.. ln an. undertrame, a center sill comprising' an integrally easttension member entendingoY beyond the holsters and assembled rolledeon'nnereial sections forming a compression member and extending fromend to end ot the ear, holsters, bolster hearings east integrallywithsaid tension meinbers and cross bearers and cross bearer bracketscast, integrally vwith the tension member and projecting from the sidesthereof. l

12. ln an underframe comprisingl the combination of holsters, and crossmembers, ot a trussed center sill comprising a Vcompression memberformed of a plurality of channel sections anda east tension memberformed with an integri-al tlangeas a hearing for said holstersand withlintegral brackets as a braeing` for the Gross bearers.

ln an underframe for railway ears, a sill eoniprisini a relativelyelast-ie compression member in juxtaposition `lwith a cast rigidtensionl member and transverse members tixed to` said leenstruction.

ll. lin an underframe for railroad ears, in combination witlrside sills.holsters and oross members of ay center sill Comprising a east. tensionmember supporting the"bolsters and cross bearers, and a eon'lpressionmember 't` L.ned ot a plurality of rolled Commercial sections incompression between the load above the underframe and the underlrai'ne.

l5. In a ear, an under-trame comprising,r huilt up holsters, a contersilll comprising a Cast tension. member extending!` into and termine' apart of' each of said holsters, and a compression member formed ofrolled metal extemlinj.;` through and beyond said holsters at each endof t-he car.

1G. In an nnderfiame, holsters, a truss eenter sill comprising a`Compression member formed of a plurality of rolled commereial sectionsand a cast tension member formed with a bottom tlange terminating `inproximity tothe holsters and secured at its ends to the compressionmember and also intermediatev of its length -by struts east integraltherewith, side sills and cross bearers connecting said center and sidesills. l

1"?. A longitudinal trussed sill for `raileompression member andextending from Way'. ears, comprising a compression meme nogaeio with aflange along` the bottom thereof and Withhorizoirtal integral flangesextending therefrom Aadapted to support the bolstr sections and Withvertical .integral Wings eri-- 5f tending' therefrom l,and carryingsuitable brackets adapted to support the cross'hearers, side sillssupported by and attached to frality of rolled commercial sections, acast said bolster and cross bearers, draft sills attached to and carriedby. said center sills, and end sills attached to and carried by saiddraft and side sills.

29. l'n an uncleifiaino for railway cars,

the. combination of holsters and draft sills and cross members, of acenter sill compris ing' a compression member .tori-ined or" aplutension member extending beyond the bol-- sters, a king pin socketand bolster filler cast integral therewith, the web of the caso inghaving,` a I'lange extendingalong the bottom thereofl and havinghorizontal integral flanges extending therefrom and adapted to supportthe bolster sections and Vertical Wings extending therefrom and Carry.

ing suitable brackets adapted to support the cross bearers, vertical endtlanges extending' V beyond-the holsters and adapted to support thedraft. sills, side sills supported and tixed to said'bolsters and crossbearers and end sills supported and :liXed to said side and draft sills.

.30. `iin underfraine for railway cars, a

center sill comprising a compressionmem- 'reenter' sill comprising acompression inember formed of a plurality of rolled' commercialsections, a cast tension member, a cast bolster provided with an upperand lower flange and a connecting;` web provided with "a Hangeari'angediii-two planes and adapted to conform to the contour of the center silland means attached to the bolster sections and extending through thecompression members for securing` the bolster sectionstogetl'i'er,crossniembers intermediate ofithe holsters supported by the center silland side sills and fixed to said cross members and holsters.

32. ln a, car underfranie, a centcr'sill coni prisme; a. compressionmember formed of a. plurality of rolled commercial sections and a casttension nieniber, holsters, rolled metal le cross members provided. withan `inclosing' flange the end thereof being arranged in two planes andadapted -to conform to the con tour of the center sill and side sillsattached to and carried by said holsters and cross members. `353. ln anunderfraniefor railway cars, a

center sill comprising,r a compression ineinber formed of a plurality ofrolled commercial sections and a cast tension member,

holsters, rolled metal cross bearers provided with a surrouniilingflange the end section of4 which is arranged in two planes to conform lothe contour of the center sills, a tapered tie-plate attached to thesaid cross bearers and extending through and being attached to thecompression member, side sills led'k tov and carried by said bolster andcross' bearers.

Si.' ln an underfranie for railway cars, :i Se

center sill comprising a compression meinI ber formed of a )luralit ofrolled comincr l Y cial sections and :iv-cast tension member, bolsters,rolled metal crossibearers rov'ided` willi a surrounding flange, theenol? which arranged in vtwo planes to contorni to the contour of thecenter sill, a tapered 'tie plate attached to the-said cross inei'nbeis,.find extending through andatsection Se i tanned to the compressionmember,',an angle 9o brace provided with an upstandin on the end of saidcross bca-rer and a sido sill. adapted to be attached to and carried bysaid cross bearer andbolsters.

flange i fln an underfraine for railway carsen center sill formed of'aplurality of rolled commercial sections, a cover plate therefor", a casttension membei, draft sills supported` ,l by said tension nieinber andsecured to/the compression member, the said cover plate extendingy overand being secured to the said draft sills, transverse members, a side;sill supported by said transverse members; l andan end sill supported bysaid draft and side sills.. i

In witness whereof Ifhave hereunto set my hand in the presence of twoWitnesses.

Jona M. noiiiiiiiiiofA Witnesses J'Aiiiis J. Qoornn, Ad Minnnizii.

